APA (7e ed.) Bronvermelding

Rachels, J. (1999). The elements of moral philosophy (3rd ed.). McGraw-Hill College.

Chicago (17e ed.) Bronvermelding

Rachels, James. The Elements of Moral Philosophy. 3rd ed. Boston: McGraw-Hill College, 1999.

MLA (8e ed.) Bronvermelding

Rachels, James. The Elements of Moral Philosophy. 3rd ed. McGraw-Hill College, 1999.